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It's a prodrug of modafinil - it's converted to modafinil within the body. This doesn't necessarily mean it's exactly the same - the pharmacokinetics matter! - but it's very close.

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As someone who has tried both adrafinil and modafinil, there is a massive difference. I barely felt anything from adrafinil, whereas modafinil was orders of magnitude more effective.

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Would strongly suggest separating out adrafinil from modafinil next time around! Modafinil was too ‘peaky’ for me, whereas adrafinil is a much smoother experience. Plus the legality aspect - letter of the law might seem like a quaint thing when experimenting with nootropics, but modafinil is a scheduled drug in the US which restricts it for teetotalers and those who carry federal security clearance. Adrafinil is a legal alternative.

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